On 2 October 2011 14:31, Ralph Hodgson
This morning I was successfully running BlazeHtml on Windows 7. Then I installed some libraries from other packages and BlazeHtml broke.
I then decided to go from ghc 6.12.1 to ghc 7.0.3 and reinstall everything.
BlazeHtml installed OK. But my program also needed ByteString. So I did the following:
Don't install bytestring yourself. GHC comes with a number of libraries (referred to as the "boot libraries") which it needs to operate (i.e. the GHC libraries depend upon them). These include base, containers, array and bytestring. As such, you upgrade one of these you will almost definitely get some form of breakage down the track due to version mis-match of these libraries. The only library that comes with GHC and is safe to install a newer version of (but not to remove the older version) is Cabal: GHC doesn't depend upon it, it just ships with it to help boostrap itself. -- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com IvanMiljenovic.wordpress.com